The Philip H. Iselin Stakes is an American Thoroughbred horse race held annually at Monmouth Park Racetrack in Oceanport, New Jersey.
In 1891, New Jersey state legislators began a move to ban parimutuel betting and the race had to be moved to the Jerome Park Racetrack and the Morris Park Racetrack in The Bronx, New York.
With a legislated permanent ban, after the 1893 running the Monmouth Park Racetrack was shut down and the property sold.
In 1946 Thoroughbred racing returned to a new Monmouth Park facility, spurred on by the burgeoning American economy after the end of World War II.
The Philip Iselin Stakes is the second leg of the Mid Atlantic Thoroughbred Championships Long Dirt Division or MATCh Races.